TY - RPRT TI - Quality of surface waters of the United States, 1967, Parts 9-11, Colorado River basin to Pacific Slope basin in California AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1972 DO - 10.3133/wsp2015 UR - https://pubs.usgs.gov/publication/wsp2015 ID - wsp2015 ER -